Type-writing machine.



No. 794,923.` PATBNTED JULY 18, 1905.

A. T. BROWN. TYPE WRITING MACHINE.

APPLICATION FILED 00T. 16, 1902.

3 SHEETS-SHEET 1.

lllr

No. 794,923. y PAINNTBD JULY I8, 1905. A. T. BROWN. TYPE WRITINGMACHINE.

APPLICATION FILED 0GT.16, 1902.

3 SHEETS-SHEET 2.

PATBNTBD JULY: 18, 1905.

A. T. BROWN.

TYPEV WRITING MACHINE.

APPLIGATIONHLBD ooT.1, 1902.

3 SHEETS-SHEET 3.

NTTED STATES Patented July 18, 1905.

PATENT OEEICE.

TYPE-WRITING MACHINE..

SPECIFICATION 'forming` part of Letters Patent N o. 794,923, dated July1s, 1905.

Application led October 16, 1902. SerialiNo. 127,545.

To (1,17/ wlw/011e t muy concern:

Be it known that I, ALEXANDER T. BROWN, a citizen of the United States,and a resident of Syracuse, in the county of Onondaga and State of NewYork, have invented certain new and useful Improvements in Type-WritingMachines, of which the following is a specification.

My invention relates to ribbon mechanism for type-writing machines, andmore particularly to mechanism for automatically reversing the directionof feed of the ribbon when an end thereof is approached; and the mainobject of the invention is to provide comparatively simple mechanism ofthe character specified which is reliable and efficient in operation.

To these and other ends, which will hereinafter appear, my inventionconsists in the features of construction, arrangements of parts, andcombinations of devices to be hereinafter described, and particularlypointed out in the appended claims. A

1n the accompanying drawings, wherein like reference characters indicatelike parts in the various views, Figure 1 is a vertical front-to-rearsectional View of one form of type-writing machine embodying myinvention. Fig. 2 is an enlarged vertical transverse sectional view ofthe machine above the base and with parts omitted and parts broken away,the view being taken at the front of the machine. Fig. 3 is an enlargeddetail side view, partly in section and with parts broken away, of vaportion of the ribbonmechanism, the view illustrating the positions ofthe parts when engagement is effected to afford a reversal in thedirection of the feed of the ribbon. Fig. 4 is a like view of the same,showing the different disposition of the parts, or that attained whenreversal inthe direction of the feed of the ribbon is about to takeplace. Fig. 5 is a view corresponding to Fig. 4, except that it showsthe disposition of the parts after a reversal in the direction of thefeed has taken place. Fig. 6

is an enlarged detail perspective view, with parts in section and partsbroken away, of a portion of the ribbon-reversing mechanism. Fig. 7 isan enlarged detail perspective view of one of the ribbon-reversingdevices to be hereinafter described. transverse sectional view of aportion of the reversing mechanism, the view being taken on the line a'w of Fig. 11. Fig. 9 is a vertical longitudinal sectional view of aportion of the ribbon mechanism, the section being taken on the line 1/`1/ of Fig. 11. Fig. l0 is an enlarged detail perspective view of aportion of the mechanism to be hereinafter described. Fig. 11 is afragmentary plan view of a portion` of the ribbon mechanism with partsbroken away and parts in section. Fig. 12 is a detail plan view of theribbon guide or vibrator. Figs. 13, 14, and 15 are central verticalsectional views of the same, showing three different angles that thevibrator is adapted to assume.

In the various views parts have been omitted and parts broken away tobetter illustrate other features of the construction.

I have illustrated my invention applied to a front-strike type-writingmachine, though it should be understood that the invention or any of theseparate features thereof may be applied 4to other characters ofwriting-machines.

The frame of the machine is made up of a base 1 and a frame 2, which issupported on the base, and this frame or casting 2 supports the carriage3 and various working parts of the machine. The frame 2 is provided withrails 4, that extend from side to side of the machine and are grooved ontheir inner faces for the reception of antifriction-balls 5, that arelikewise received in companion grooves 6 in the cross-rails 7 of thecarriage. 1n this manner the carriage is supported to travel from sideto side of the machine. The base 1 has depending rods 8, which, togetherwith the supporting-plate 9, constitute means for supporting a platform10 to the base. This platform is provided with upwardly-extending lugsor studs 11, that are recessed at 12 for the reception of pivots 13,projecting laterally from key-levers 14, which have {ingerkeys 15 attheir forward ends and are each provided with an upwardly-extending arm16, that extends into the path of and is adapted to bear upon a pad 17of ascgmental universal bar 18, provided with upwardly-extending Fig. 8is a detail ISO a screw 27 to the type-bar segment 22, andV Y.

each type-bar is connected by a link 28 to the upwardly-extending arm 16of the associated key-lever, each type-action being restored to itsnormal position bya spring 14n. The arms 19, which support the universalbar, are connected by rearwardly-extending links 29 to crank-arms 30,depending from a rock-shaft 3l,which extends from side to side of themachine, as illustrated in Fig. 2, and is supported by screw-bearings32, that take in threaded openings inthe sides of the frame 2 and bearat their inner coned ends in openings in the rock-shaft 31. A coiledspring 33 surrounds the rock-shaft 31 and is connected at one end 34 toone of the crank-arms 30 and at its opposite end 35 to one of thecross-rails 4. Rigid feed-dogs 36 are formed in one piece with or areconnected to asleeve 37, secured by a screw 37 a to the rock-shaft 31,and the dogs coperate with an escapement-wheel 38, that is rigidlysecured to a shaft 39, supported at one end in an adjustablescrew-bearing 40, received in the rear portion of the frame 2, and theopposite end of the shaft is reduced at 41 and is received in abearinginthe forward portion of the frame 2. Surrounding the shaft 39 is alooselymounted sleeve 42, that is provided with teeth 43 on one endthereof, which constitutes one member of a two-part clutch. This sleeveis likewise provided with a pinion 44, which meshes with a gear-wheel45. A suitable spring (not shown) is interposed between the sleeve 42and the escapement-wheel 38 and tends to normally maintain the teeth 43in engagement with the coperating teeth of the other clutch-section,which latter is formed as a part of a worm 46, secured to the shaft 39.The disposition of the parts is such that the sleeve 42 may be movedlongitudinallyT upon the shaft 39 by any suitable means against thetension of its spring to effect a v disengagement of the clutch memberswithout moving the pinion 44 out of mesh with its coperating gear 45 andin order that the escapement mechanism and ribbon mechanism may beentirely disconnected from the carriage and may be maintained at restduring the return movements of the carriage to the right, as willhereinafter more clearly appear.

The gear 45 meshes with a rack 46, that extends longitudinally of thecarriage and is secured to the under side of one of the crossrails 7,and constant mesh is maintained between the gear and the rack 46.Connected to the gear 45 is a bevel-pinion 47, which meshes with acooperating bevel-pinion 48, having its collar 49 secured to a shaft 50by a set-screw 51. The shaft 50 is extended beyond the face of thebevel-gear 48, where it is received in suitable bearings carried by theframe 2, whereas the opposite end of said shaft is received within ascrew-bearing 52, that takes in a threaded opening in the side wall ofthe frame 2. The shaft 50 likewise has a' pinion 53 secured thereto by ascrew 54, and a segmental rack meshes with this pinion, the rack beingpivoted at 56 to a forwardly-extending bracket-arm 57, secured to theframe 2 of the machine. rlhe segmental rack 55 has a handle 58, whichextends forwardly of the pivot in order that the rack and the partscontrolled thereby may be actuated by hand, as will hereinafter moreclearly appear. The carrier for the segmental rack 55 is provided with aplain-faced segmental portion 59, against which a strap 60 is adapted tobear, one end of the strap being secured to the carrier of the segmentalrack at 61, whereas the opposite end of said strap or band is connectedat 62 to a contractile spring 63, that has its opposite end connected at64 to a strap or band 65. The forward end of the strap 65 is secured bya screw 66 to a block 67, that is tapped to receive a threaded rod 68,the rear end of which is received within a bearing 69, formed in thebase of the machine, whereas the forward head of said rod extendsthrough the front of the base and is seated in a depression therein andis provided with a notch to afford a turning ofl the rod or spindle by ascrew-driver to effect an adjustment of the tension of the spring 63.

From the foregoing description it will be understoodl that the tensionof the spring 63 is exerted upon the segmental rack 55 and through thepinions 53, 48, and 47 and through the gear 45 to the rack 46 to effecta movement of the carriage from right to left or Ain the direction ofits feed whenA the feed-dogs 36 are Vibrated to afford amovement of theescapement-wheel. The disposition of the parts is such that the handle58 will be in the uppermost position when the carriage has completed itstravel toward the left. A depression of the handle will therefore movethe carriage through lthe segmental rack 55 and the intermediateconnections back to the initial position or to the extreme right. Itwill be understood, therefore, that the spring 63 constitutes acarriage-spring and that the tension of the spring is increased when thehandle 58 is depressed to move the carriage to the right.

The platen is supported in a platen-frame 71 upon links 7 2, which arepivoted to the end plates of the carriage at 73. The platen-frame IOOITS

IZO

is pivoted at 75 to crank-arms 74, that extend v forwardly and upwardlyfrom a rock-shaft 76, which is supported in bearings 77, that extendrearwardly from the forward cross bar or rail 7 of the carriage. Therock-shaft 7 6 likewise has. a centrally-located depending arm 78, whichis provided at its lower end with an antifriction-roller 79, bearingupon a plate 80, that extends from side to side of the machine and isconnected to or formed integral with the rock-shaft 81, that issupported in bearings in the ends of the frame 2. This so-calledrock-shaft 81 likewise has a forwardly projecting crank arm 82 securedthereto and at the forward ends of which is pivoted at 83 adownwardly-extending link 84, pivoted at its lower end 85 to a lever 86,the lever being pivoted at 87 to a post 88, that extends upwardly fromthe platform 10. The forward end of the lever 86 is provided with a key89, by means of which the lever can be actuated to effect a movement ofthe platen through the intermediate connections, platenframe, andkey-lever, thereby shifting the platen from the lower to the upper easeposition, the weight of the platen and its associated parts beingsuflicient to move the platen to the lowermost position. This movementof the platen in a direction transverse to its length enables it to bebrought into position to receive an impact of either the inner or outertypes on the type-bars.

The rock-shaft 31 for the feed-dogs is provided with a sleeve 90, whichis secured thereto by a pin 91, that extends through the sleeve andshaft. This slee-ve is provided with an abutment or stop 92, (see Figs.13, 14, and 15,) which extends from one edge thereof and inv thedirection of the length of the platen and cooperates with the stop-faces93 and 94 from one end of the sleeve-like bearing portion 95 of theribbon-vibrator. This sleeve 95 surrounds the shaft. 31 and is providedwith forwardly-extending arms 96, that carry antifriction rollers orpulleys 97 between the ends thereof and on a pivot 97, that extends fromone arm to the other. A frame 98 has arms 99, that are riveted at 100 tothe supportingarms 96, and extending inwardly from the arms 99 andtoward each other are lingers 101, as represented in Fig. 12. The upperbearing or terminal portion 102 of the ribbon vibrator or guide issecured to the frame 98 at 103 and is bent at an angle thereto, asrepresented in Fig. 1. This ribbon-guiding portion 102 is provided witha central divisionpiece 104, that is formed into a downwardlyextendinghook and from which oppositelysloping guide-walls 105 extend. Thesesloping walls are paralleled by guide-lingers 106, each of which extendsthroughout a portion of the length of its associated guide wall or ecge.

The shaft 31 has a collar or flange 107 secured thereto, and one end ofa coiled spring 108, which surrounds the shaft, is secured to thiscollar, 'whereas the opposite end4 of said spring is secured to thecarrier or sleeve 95 of the vibrator and tends to normally maintainV thevibrator in the position shown in Fig. 13- that is to say, the tensionofthe spring 108 is exerted to maintain the abutment 94 on the sleeve 95in contact with the abutment 92, Fig. 13, on the collar 90, which issecured to the rock-shaft, and this relative disposition of theribbon-vibrator and rock-shaft 31 is maintained under normal conditions.The ribbon 109 extends fromv one ribbon-spool, over one of theguide-rollers 97 on the ribbon-vibrator, between the associatedguide-linger 101 and the frame 98 of the vibrator, thence over one ofthe sloping walls 105, and between it and the associated guide-finger106, where it makes a turn and passes over and turns on the oppositewall 105 and back under the other linger 101, thence over the associatedroller 97, and back to the other ribbon-spool,so that throughout theentire extent, except where the ribbon makes a turn upon the bearingportion 102 of the ribbon-vibrator, the ribbon is maintained insubstantially parallel lengths. The ribbon in passing from one slopingwall 105 to the other passes under the hooked portion of thedivision-piece 104, which prevent-s the ribbon from being accidentallydisplaced from the outer end of the ribbon-vibrator. A depression of alinger-key will force the associated type-bar to the printing-point, asindicated in dotted lines in Fig. 1, thereby bringing the arm 16 of theassociated key-lever into contact with the universal bar, thus moving ittoward the front of the machine to the dotted-line position, and theeect of which is to turn the rock-shaft 31, thereby affording a movementof the feed-dogs toward the front of the machine. This same movement ofthe rock-shaft 31 is effective to move the ribbonvibrator from theposition shown in full to that indicated in dotted lines in Fig. 1, andthe ribbon will be brought into the path of the type before it reachesthe printing-point. When the finger-key is released, the parts will berestored to the normal position. (Represented in full lines in Fig. 1and indicated in Fig. 14.) Should the operator desire to move theribbon-vibrator to a further extent from the platen, in order thaterasures or corrections may be made with greater facility and withoutremoving the paper from the machine or turning the platen, it is merelynecessary to depress the ribbon-vibrator, and it may be moved around theshaft 31 from the normal position (indicated in Fig'. 14) to thatindicated in Fig. 15. At this time the rock-shaft 31 is maintained atrest and the ribbon-vibrator is merely moved against the tension of thespring 108, and the relative movement of the ribbonvibrator totherock-shaft 3l is arrested by the abutment 93 on the vibrator carrier orsleevev coming into Contact with the abutment 92, secured to therock-shaft, and which at this time is maintained fixed relative to thevibrator. When the vibrator is released, the tension of IOO the spring108 will force it back to the normal position, where it is arrested bytheabutment 94 coming into contact with the relatively`fixed abutment 92on the rock-shaft. The next depression of the linger-key will cause thevibrator to move from the full to the dotted line position in the usualmanner, the parts being maintained in a fixed relation by the spring108.

I will next describe the ribbon-feed mechanism and the means by whichthe direction of the feed of the ribbon is automatically reversed.

rlhe worm 46, hereinbefore described, cooperates with a worm-wheel 110,that carries apawl 111, pivoted thereto at 112, the pawl being normallymaintained in engagement with a cooperating ratchet-wheel 113 by aspring 114, secured at 115 to the worm-wheel and bearing at its free endagainst the pawl. The ratchet-wheel113 has a sleeve 113, which issecured by a screw 116 (see Fig. 9) to a shaft 117, received in bearingsin the frame 2 of the machine. One of these bearings is formed by anupwardly-extending bracket 118, whereas the opposite bearing is formedby a screw-collar 119, received and adjustable in a threaded opening inthe frame 2.l The worm-wheel 110 is loosely mounted on the shaft 117 andis held against longitudinal displacement thereon by theratchet-wheel113 on one side and a collar 120 on the other. This collaror liange projects from a sleeve 121, that surrounds the shaft, and issecured thereto by a screw 122, and interposed between the shaft and thesleeve are spring-arms 123, which terminate in bearings 124 for thepivots of rollers or detents 125. The shaft 117 has a groove extendingthroughout or substantially throughout the length thereof for thereception of a bar 126, that turns with the shaft, but is adapted toslide longitudinally in its groove independently of the shaft. The outerend of this bar terminates in a threaded portion 127 as shown in dottedlines in Fig. 9, and a nut 128, having a lnurled head, is adapted to bereceived on the threaded end of the bar and affords hand-operated meansby which the bar may be moved longitudinally when desired andliliewiscconstitutes a collar which limits the movements of the bar in onedirection by bearing against the sleeve 129, from which projects acrankarm 130, provided with a handle 131. The crank-arm, sleeve, andhandle are secured to the shaft 117 by a screw 13.2, so that the shaft,together with the parts carried thereby, may be rotated by hand whendesired, it being understood that the handle and thumb-nut 128 projectbeyond one side of the machine where they are accessible tothe operator.The bar 126, hereinbefore referred to, is provided with lateralprojections or cams 133, that coperate with the detents or rollers 125,'which tend to move the bar longitudinally in either direction when thecrowns 134 of the cams pass the centers of the rollers in either onedirection or the other, and the tension of the springs 123 tends tomaintain the bar in the 'position to which it is shifted after acomplete movement thereof in either direction has taken place by forcingthe rollers against the sides of the cams, as indicated in Fig. 9. Thebar 126 is apertured or slotted at 135 for the reception of a stem 136,that projects laterally from a double locking or engaging pawl or clutchmember 137, each end of the pawl being provided with an engaging nose138, as represented in Fig.11. r1`he pawl137 is in the nature of aslide, which is received within a groove 139 in a sleeve 140, whichsurrounds the shaft 117 and has a transverse opening 141, through whichthe stem 136 of the pawl projects. The disposition of the parts is suchthat an independent movement of the bar 126 longitudinally of the shaft117 may take place before such movement is transmitted to the pawl 137.The sleeve 14() is secured to the shaft by a headed screw 142, (see Fig.9,) that is entered through an opening 143 in the core of one of theribbon-spools and takes in threaded openings in the sleevel and shaft tounite the sleeve to the shaft. Surrounding the sleeve 14() are tworibbon-spools 144 and 145, which are adapted to turn thereon, theribbon-spools being prevented from moving longitudinally on the shaft bycams 146 and 147 on opposite sides thereof, and which are secured to theshaft by screws 148, that extend through threaded openings in the sleeveand bear at their inner ends against the shaft. The outer head of eachribbon-spool has secured near the core thereof a disk provided with acircular series of inwardly-extending ratchet-teeth 149, that projecttoward the teeth of the other spool, as indicated in Fig. 11, and whichare adapted to cooperate IOO with the double pawl 137. Thus when the theribbon-spool and throws the pawl into engagement with the teeth 149 onthe ribbon-spool 144.

Mounted on the shaft 117 and upon opposite sides of the ribbon-spoolsare so-called reversing devices 150 and 151, each of which consists of asleeve surrounding the shaft and which has a cam opening or groove 152therein, these cams extending in opposite directions, as represented inFigs. 9 and 11. These devices are loosely mounted on the shaft and eachof them is provided with laterallyextending fingers or abutments 153,which are preferably diametrically opposite each other, as representedin Fig. 7. The cams 146 and 147, hereinbefore described, have thegeneral elliptical shape, so that they each constitute a peripheral camwith diametrically opposite low portions 154, that permit the lingers153 of the associated reversing device to project beyond the edgethereof, whereas the highest portions 155 of each cam are so related tothe fingers 153 of the associated reversing device that when thelongitudinal axis of the cam is brought into alinement with the fingers,as represented in Fig. 5, the outer ends of said fingers will becoincident with or lower than the peripheral face of the coperating cam.The bar 126 is provided with studs 156, which extend into thecam-grooves 152 in the reversing devices, as represented in Figs. 9 and11, and a relative turning movement of the shaft and pins 156 of eitherof the reversing devices will cause a longitudinal movement of thebarv126 by the cooperation of the cams with the associated pins 156extending from the bar, the direction of movement depending upon whichpin 156 and its associated cam receives a relative movement. Thus if thereversing device 151 is arrested while the shaft 117, with the bar 126and its pins 156, continues to rotate the cam of the device 151 willcause the bar 126 to be moved toward the left, f

and after the detent-rollers 125 pass over the crowns of the cams 133they tend to assure the complete movement of the bar 126 to the left. Onthe other hand, if the reversing device 150 is arrested, so that thereis a relative rotary movement between the shaft 117, bar 126, with thepins 156 carried thereby, and said reversing device, then the bar 126will be moved longitudinally in its groove toward the right. Asheretofore explained, the longitudinal movement of the bar controls thepawl 137. Thus after a limited independent movement of the bar in eitherdirection an end wall of the slot 135 in the bar will contact with thefinger 136 of the pawl and move it out of engagement with the teeth 149of one ribbon-spool and into engagement with the teeth of the otherribbon-spool. The engaged ribbon-spool will be positively locked totheshaft and rotated therewith, whereas the released ribbon-spool willrotate freely on its bearing and be turned by the pull of the ribbonthereon in an opposite direction from that of the positively-drivenspool, thus winding the ribbon on one spool and unwinding from theother.

Tn order to automatically arrest either of the reversing devices 150 and151 when an end of the ribbon is approached, I have providedindependently-operable automatically actuated devices, which will now bedescribed. These devices consist of two set of arms, one for eachribbon-spool. Thus an arm or bearing-piece 157 is rigidly secured to asleeve 158, which turns freely upon a fixed shaft 158", that is mountedin bearings 159 on the frame 2 of the machine. This bearing-arm 157 isadapted to vibrate between the flanges or heads of its associatedribbon-spool and to bear upon the outer surfaces of the ribbon, as

represented in Figs. 3, 4, and 5. An associated stop-arm 160 is securedby a screw 161 to a weight 162, that is rigidly secured to the sleeve158 and tends to maintain the bearing piece or arm 157 in contact withthe surface of the ribbon. This stop-arm 1.60 projects to lone side ofits associated ribbon-spool, as represented in Fig. 2, and is adapted tobear at its free end upon the cam 146 when the ribbon is sufficientlyunwound from the associated ribbon-spool to permit it to do so, asrepresented in Figs. 3, 4, and 5. A like set of arms are employed forthe ribbon-spoolk 145. Thus an arm or bearing-piece 157 is adapted toproject between the flanges of the ribbon-spool 145 and to bear upon anouter surface of the ribbon, and this arm is connectedto a sleeve 1581),which turns freely on the shaft 158u and is provided with a weightedportion 162, to which an arm or stop 160 is secured, the latterprojecting to one side of its associated ribbon-spool and being adaptedto bear at its free ends upon the associated cam 147 when the ribbon onthe spool 145 is sufficiently unwound to permit it to do so.

It should be understood that the fingers 153, which project from thereversing devices, extend at right angles to each otherthat is to say,the fingers of one reversing device extend at right angles to thefingers of the other reversing device-and this relative position of thefingers is maintained at all times irrespective of the fact that thedevices are loosely mounted upon the rock-shaft and that the latter hasa movement under certain conditions relative of said devices.

From an examination of Figs. 2, 3, and 4 it will be understood that thedisposition of the parts is such that the ribbon is being unwound fromthe vspool 144, whereas the spool 145 is rigidly connected to the shaftto rotate therewith in the direction of the arrow indicated at the spool145 in Fig. 3, so that the ribbon is wound upon the spool 145. At thistime the right-hand reversing device 151 has its fingers 153 extendingbeyond the periphery of the cam at the lowest portions thereof, and whenthe end of the ribbon on the spool 144 is approached or the ribbon issufiiciently unwound the stop-arm 160 is permitted to extend into thepath of one of the lingers 153 on the reversing device 151, as indicatedin Fig. 3,

thus arresting the movement thereof with the shaft 117. The continuedrotation of the shaft for a quarter-turn turns the associated cam 146,which is secured to the shaft, from the position indicated in Fig. 3 tothat shown in Fig. 4. The cam during this movement, bearing, as it does,on the free end of the stop-arm 160, raises it and brings one of thehighest portions155 of the cam opposite the engaged finger, so as todisconnect the stop-arm 160 from the finger 153 on the reversing device,as indicated in Fig. 4, which shows the positions of the parts justbefore the stop-arm is IOO IIO

disengaged from the finger. The effect of this operation is to afford aquarter-turn of the shaft with reference to the reversing device 151,which relative movement of the parts is eectiveto move the bar 126toward the left, thereby disengaging the pawl 137 from the spool 145 andat the same time forcing the pawl into engagement with the teeth on thespool 144. This releases the spool 145 and locks the spool 144 to theshaft, so that the ribbon-spools turn in the opposite directions fromthose in which they turned before the shifting of the bar 126. Fig. 5represents the disposition of the parts after the reversing operationhas taken place, and it will be observed that at this time the fingers153 on the reversing device 151 extend in the direction of thelongitudinal axis of the cam, and the free edge of the stop-arm 160,bearing on the periphery of the cam, will be prevented from engaging thefingers. The ribbon continues winding on the spool 144 during theoperation of the machine until it is sufficiently unwound from the spool145 to enable the stop-arm 160 to be brought into engagement with one ofthe fingers 153 of the reversing device 150, when said reversing devicewill be arrested by the stop-arm, which will effect a longitudinalmovement of the bar 126 toward the right and areversal in the directionof the feed of the ribbon will be automatically brought about in themanner heretofore described. It will be understood that when eitherreversing device is arrested by its associated stop-arm it will cause alongitudinal movement of the bar 126 and that this movement of the barin either direction will cause the reversing device, which is maintainedwith its fingers 153 in the direction of the longitudinal axis of itsassociated cam, to be moved a quarter-turn by reason of the engagementbetween the cam-slot and pin 152 and 156, so that the lingers willextend at right angles to the length of the associated cam, where theyare in a position to be engaged by the associated arresting or stop arm160 or 160 during further revolution of the shaft. It further followsthat when the iingers 153 of one controlling or reversing device are atright angles to the length of the associated cam, as indicated in Fig.3, the fingers 153 of the other reversing device will extend in thedirection of the longitudinal axis of the associated cam, as representedin Fig. 5, this right-angular disposition of the fingers 153 on the tworeversing devices being likewise indicated vin Fig. 9. The effect ofthis operation is to automatically set the parts for the next reversingoperation every time the parts are actuated to bring about a reversal inthe direction of the feed of the ribbon. Should the operator desire atany time to effect a reversal in the direction of the feed, it is merelynecessary to move the bar 126 in a longitudinal direction by pushing itin or pulling it out through the thumbnut or lznurled head 128. It willlikewise be seen that the operator may at any time wind the ribbon fromone spool to another by turning the shaft 117 through the handle 131,the spool on which the ribbon is wound being determined by thedisposition of the rod 126, which may be moved in the manner described.

In the operation of the machine an actuation of the finger-keys willafford a movement of the carriage in the manner hereinbefore describedthrough the spring 63 and the intermediate connections between saidspring and the carriage. The effect of the movement of these parts is toturn the worm 46, thereby transmitting an intermittent rotary motion tothe shaft 117. The intermittent rotation of the shaft 1'17 will causethe ribbon-spool connected thereto bythe pawl 137 to be positivelyrotated in one direction, thus winding the ribbon thereon, whereas theother spool is turned in an opposite direction by the pull of the ribbonthereon, so that the power applied to move the carriage is effective tomove the ribbon mechanism. As the ribbon is gradually unwound from onespool to another the bearing device of the spool from which the ribbonisunwound will eventually permit the associated stop-arm to be projectedinto the path of the fingers 153 on the associated reversing device. Afurther quarterturn of the shaft will bring about the relative movementbetween the engaged reversing device and the shaft in the mannerhereinbefore described. This relative movement between these parts iseffective to move the bar 126 longitudinally of the shaft, thus throwingthe pawl 137 out of engagement with the ribbon-spool, which is locked torotate with the shaft, and throwing said pawl into engagement with theribbon-spool from which the ribbon was being unwound.

Various changes may be made without departing from the spirit of myinvention, and certain features thereof may be employed without theothers.

Certain of the parts shown in the accompanying drawings are not claimedherewith, but are claimed in separate applications filed by me herewithor in an application filed by me on the 21st day of April, 1902, andbearing Serial No. 103,898.

What I claim as new, and desire to secure by Letters Patent, is-

1. In a type-writing machine, the combination of ribbon-spools, a devicewhich normally revolves with the ribbon-spools, andautomatically-actuated means for stopping said device when an end of theribbon is approached and for reversing the direction of the feed of theribbon. v

2. In atype-writing machine, the combination of ribbon-spools, a partwhich normally rotates with said ribbon-spools, means for au- IOOtomatically arresting said part when an end' of the ribbon isapproached, and means controlled by said part and cooperating with bothribbon-spools for automatically effecting' a change in the direction ofthe feed of the ribbon.

3. In a type-writing machine, the combination of ribbon-spools,reversing' devices, one for each spool and which normally rotate withsaid ribbon spools, independently actuated means associated with eachspool for automatically arresting the associated reversing device whenan end of the ribbon is approached, and means controlled by saidreversing devices for automatically effecting' a change in the directionof the feed of the ribbon.

et. In a type-writing machine, the combination ofribbon-spools,reversing devices, one foreach spool and which are adaptedto normally rotate with the ribbon-spools, controlling devices, one foreach spool and which are adapted to bear upon the surface of the ribbonon the spools and each adapted to automatically arrest its associatedreversing device, and means controlled by said reversing devices foreffecting a chang'e in the direction of the feed of the ribbon.

5. In a type-writing machine, the combination of ribbon-spools,reversing devices, one for each spool and which are adapted normally torotate with the ribbon-spools, controlling devices, one for each spooland which are adapted to bear upon the surface of the ribbon on thespools, and each adapted to automatically arrest its associatedreversing device, means controlled by said reversing devices foreffecting a change in the direction of the feed of the ribbon, and meansfor automatically preventing the arrest of one reversingdevice when theother is adapted to be arrested by its controlling' device.

6. In atype-writing machine, the combination of a shaft, ribbon-spoolsmounted on said shaft, engag'ing means carried by said shaft and adaptedto connect either spool to rotate with the shaft, and means independentof the spool for automatically actuating said engaging' means when anend of the ribbon is appreached.

7. In a type-writing machine, the combination of a shaft, ribbon-spoolsmounted on said shaft, engaging means carried by said shaft and adaptedto rotate therewith and to move independently thereof, to connect eitherspool to rotate with the shaft, reversing means for automaticallyactuating said engaging means, and means controlled by the ribbon oneach spool and brought into cooperation with the reversing means toafford an actuation thereof when an end of the "ribbon is approached.

8. In a ty pe-writing machine, the combinationof a shaft that isrotatable in but one direction, ribbon-spools loosely mounted on saidshaft, and means operable independently of any strain on the ribbon forautomatically releasing' one spool and locking' the other to the shaftwhen an end of the ribbon is approached.

9. In a type-writing machine, the combination of a shaft that isrotatable in but one direction, ribbon-spools loosely mounted on saidshaft, means for locking either spool to rotate with the shaft, areversing' device that coperates with the locking means and whichnormally rotates with the shaft, and means which are automaticallyactuated when an end of the ribbon is approached, to arrest saidreversing device and automatically effect an engagement of one spoolwith and a disengagement of the other spool from the shaft.

IO. In a type-writing machine, the combination of ribbon-spools, a shafttherefor, a pawl which is adapted to engage either of said ribbon-spoolsto lock the engaged ribbon-spool to rotate with the shaft, and meansoperable independently of any strain on the ribbon for automaticallyshifting said pawl when an end of the ribbon is approached.

11. In a type-writing machine, the combination of ribbon-spools, a shaftupon which both ribbon-spools are loosely mounted, a pawl which iscarriedv by said shaft and adapted to engage either of saidribbon-spools to loch the engaged ribbon-spool to rotate with the shaft,and means operable independently of any strain on the ribbon forautomatically shifting said pawl when an end of the ribbon isapproached, to disengage the pawl from one ribbon-spool and effect anengagement, thereof with the other ribbon-spool.

1Q. In atype-writing machine, the combination of ribbon-spools, a shafton which said spools are loosely mounted, a bar that rotates with saidshaft and moves longitudinally thereof, means controlled by said bar foreffecting a connection between either spool and the shaft and forsimultaneously effecting a disconnection between the other spool andtheshaft, and means for automatically effecting a longitudinal movement ofthe bar when an end of the ribbon is approached.

I3. In a type-writing machine, the combination of ribbon-spools, a shafton which both ribbon-spools are loosely mounted, a bar that rotates withsaid shaft and moves longitudinally thereof, means controlled by saidbar for effecting a connection between either spool and the shaft andfor simultaneously effecting a disconnection between the other spool andthe shaft, reversing devices that are adapted to rotate with the shaft,and means for automatically arresting either of said reversing devicesto effect a longitudinal movement of said bar when an end of theribbonis appreached.

14. In atype-writingmachine, the combination of a shaft, means forrotating said shaft in one direction, ribbon-spools loosely mounted onsaid shaft, means carried by the shaft and movable independently thereoffor effecting a connection between one spool and IOO IIO

rigo

the shaft and for simultaneously effecting a disconnection between theother spool and the shaft, and means adapted to bear upon the ribbon onthe spools and controlled thereby for automatically affording a movementof said connecting` means when an end of the ribbon is approached.

15. In a type-writing machine, the combination of a shaft, means forrotating said shaft, ribbon-spools loosely mounted on said shaft, meanscarried by the shaft and movable independently thereof for effecting aconnection between one spool and the shaft and for simultaneouslyeffecting a disconnection between the other spool and the shaft,reversing means which are operatively connected to said connecting meansand adapted to rotate with the shaft, and means associated with eachribbon-spool for automatically arresting the reversing means when an endof the ribbon is approached, to afford an actuation of the connectingmeans and thus effect a reversal in the direction of the feed of theribbon.

16. In atype-writingmachine, the combination of a power-driven carriage,a shaft operatively connected to be turned by the power applied to thecarriage, ribbon-spools loosely mounted on said shaft, connecting meansfor connecting either spool to the shaft when the other is disconnectedtherefrom, and means independent of the ribbon-spool for automaticallyactuating said connecting means when an end of the ribbon is approached.

17. In atype-writingmachine, the combination of a power-driven carriage,a shaft operatively connected to be turned by the power applied to thecarriage, ribbon-spools loosely mounted on said shaft, connecting meansfor connecting either spool to the shaft when the other is disconnectedtherefrom, and means that are adapted to bear upon the ribbon on thespools and automatically afford an actuation of the connecting meanswhen an end of the ribbon is approached, to effect a change in thedirection of the feed of the ribbon.

18. In a type-writi ng machine, the combination of a power-drivencarriage, ashaft operatively connected to be turned by the power appliedto the carriage, ribbon-spools loosely mounted on said shaft, connectingmeans which rotate with the shaft and move independently thereof, forconnecting either spool to the shaft when the other is disconnectedtherefrom, and means operable independently of any strain on the ribbonfor automatically effecting an independent movement of said connectingmeans when an end of the ribbon is approached, to reverse the directionof the feed of the ribbon.

19. In atype-writing machine, the combinafion of a power-drivencarriage, a shaft operatively connected to be turned by the powerapplied to the carriage, ribbon-spools loosely mounted on said shaft,connecting` means for connecting either spool to the shaft when theapplied to the carriage, ribbon-spools loosely.

mounted on said shaft, connecting means for connecting either spool tothe shaft when the other is disconnected therefrom, reversing devicescarricd by and adapted to rotate with said shaft and operativelyconnected to the connecting means, arresting means .that are adapted toproject into the path of said reversing devices to arrest the movementthereof with the shaft, and devices which are connected to the arrestingmeans and bear upon the ribbon, to automatically afford a reversal inthe direction of the feed of the ribbon when an end thereof isapproached.

21. In a type-writing machine, the combination of a power-drivencarriage, a shaft operatively connected to be turned in one direction bythe power applied to the carriage, ribbon-spools loosely mounted on saidshaft, a pawl that is carried by andA rotates with said shaft and slideslongitudinally thereof in a groove therein and which is` adapted toconnect either spool to the shaft when the other spool is disconnectedtherefrom, reversing devices carried by the shaft and adapted to rotatetherewith, intermediate connections between said reversing devices andsaid pawl, independen tl y-operable arresting devices that coperate withsaid reversing devices to momentarily arrest the movement thereof, andmeans for automatically affording a movement of one of said arrestingdevices to the operative position when an end of the ribbon isapproached.

QQ. In atype-writing machine, the combination of ribbon-spools, meansfor turning said ribbon-spools, means for connecting either spool to itsturning means, and means for controlling the actuation of saidconnecting means, which controlling means com prises twoindependently-operable sets of arms, one set for each ribbon-spool, onearm of each set being adapted to bear on the ribbon on the associatedspool and the other being adapted to project into the path of and toarrest the movement of a part which is connected to the connectingmeans, and thereby afford an automatic reversal in the feed of theribbon.

23. In a type-writing machine, the combination of ribbon-spools, a shaftfor turning said ribbon-spools, clutch mechanism for connecting eitherspool to its turning-shaft, and means for controlling the actuation ofsaid clutch mechanism which lcontrolling means com- IOO IIO

prises two independently-operable sets of arms, one set for eachribbon-spool, and the arms of each set being rigidly connected, one armof each set being adapted to bear on the outer surface of the ribbon onthe associated spool and the other arm being adapted to project into thepath of and to coperate with a part which is connected to the clutchmechanism to actuate it, and thereby afford an automatic reversal in thefeed of the ribbon.

24. In a type-writing machine, the combination of ribbon-spools, meansfor connecting either spool to its actuating' means when the other spoolis disconnected therefrom, and controlling means for affording anautomatic actuation of the connecting means to reverse the direction ofthe feed of the ribbon, which controlling means comprises reversing1devices that rotate with the spools, means for automatically arrestingthe reversing devices, and means for automatically releasing thereversing devices after they are arrested.

25. In a type-Writing machine, the combination of ribbon-spools, meansfor connecting either ribbon-spool with its driving means,automatically-actuated means for controlling the operation of saidconnecting means, which controlling means comprises a device that isautomatically thrown into the path of movement of a part connected tothe connecting means to arrest the movement of said part and thus afforda relative movement of the said part and the spools, thereby effecting amovement of the connecting means to disengage one spool from its drivingmeans and connect the other spool thereto.

26. In a type-Writing machine, the combination of ribbon-spools, meansfor 'connecting either ribbon-spool with its driving means, cams Whichare adapted to rotate in unison with the spools, and which control thesaid connecting means, and means for automatically arresting one of saidcams when an end of the ribbon is approached.

27. In a type-Writing machine, the combination of a shaft, means forrotating the shaft, ribbon-spools loosely mounted on said shaft, meansfor connecting either ribbon-spool With the shaft, cams which areadapted to rotate in unison with the shaft and which controlthe saidconnecting means, and means for automatically arresting one of said camswhen an end of the ribbon is approached, to afford an actuationof theconnecting means and thereby change the direction of the feed of theribbon.

28. In a type- Writing machine, the combination of a shaft, means for'rotating said shaft, ribbon-spools loosely mounted on the shaft, aratchet-Wheel connected to each ribbon-spool, a paWl adapted tocooperate with the ratchetwheel of either spool, cams which areconnected to said paWl and are adapted to rotate with the shaft, andmeans for automatically arresting one of said cams when an end of theribbon is approached, to afford an actuation of the paWl and therebychange the direction of the feed of the ribbon.

29. In atype-w riting machine, the combination of a shaft, means forrotating said shaft, ribbon-spools loosely mounted on the shaft, aratchet-wheel connected to each ribbon-spool, a pawl which is mounted toslide on said shaft longitudinally thereof and is adapted to cooperatewith ratchet-wheel of either spool, oppositely-disposed cams which areconnected to said pawl and are adapted to rotate with the shaft, andmeans for automatically arresting one of said cams when an end of therib- Y bon is approached to afford a movement of the pawl longitudinallyof the shaft and thereby disengage the paWl from the ratchet-Wheel ofone spool and engage it with the ratchet-Wheel of the other spool, tochange the direction of the feed of the ribbon.

30. In a type-Writing machine, the combination of ribbon spools, meansfor connecting either ribbon-spool With its driving means, cams whichare adapted to rotate in unison with the spools and which control thesaid connecting means, means for automatically arresting one of saidcams When an end of the ribbon is approached, and cams for automaticallydisengaging the arresting means from the first-mentioned cams.

3l. In a type-Writing machine, the combination of a shaft, means forrotating the shaft, ribbon-spools loosely mounted on said shaft, meansfor connecting either ribbon spool with the shaft, cams which areadapted to rotate in unison with the sha'ft and Which control the saidconnecting means, and means for automatically arresting one of said camswhen an end of the ribbon is approached, to afford an actuation of theconnecting means and thereby change the direction of the feed of theribbon, and releasing -cams which are fixed to said shaft and areadapted to automaticall y disengage the arresting means from saidfirst-mentioned cams.

32. In atype-Writing machine` the combination of a shaft, means forrotating said shaft, ribbon-spools loosely mounted on the shaft, aratchet-Wheel connected to each ribbon-spool, a pawl which is mounted toslide on said shaft longitudinally thereof and is adapted to cooperateWith ratchet-Wheel of either spool, oppositely-disposed reversing-camswhich are connected to said pawl and are adapted to rotate with theshaft, means for automatically arresting one of said reversing-cams whenan end of the ribbon'is approached, to afford a movement of the pawllongitudinally of the shaft and thereby disengage the paWl from theratchet-Wheel of one spool and engage it with the ratchet-Wheel of theother spool, to change the direction of the feed of the ribbon, anddisengaging-cams Which are fixed to rotate with said shaft and areadapted to disengage the arresting means from the arrested IOO IIO

reversing-cam after a longitudinal shift of the pawl has been effected,to permit the prevlously-arrested reversing-cam to continue its vmovement with the shaft.

33. Inatype-writing machine, the combination of ribbon-spools, drivingmeans therefor, means for'connecting either spool to its driving means,means for automatically shifting the connecting means when an end of theribbon is approached, by arresting a part which rotates with the drivingmeans and Which comprises arresting devices that are automatically movedto the operative position,l and cams that move in unison with thedriving means, for effecting a disconnection of the arresting devicesafter the connecting means have been shifted.

34. In a type-writing machine, the combination of ribbon spools, meansfor turning either of said ribbon-spools, means for automaticallyreversing the direction of the feed of theA ribbonv by arresting a partwhich normally moves when the ribbon spools are turned, andvdisengaging-cams which likewise move when the ribbon-spools are turnedand which are effective to disengage the arrested part and permit acontinuation of the movement thereof.

35. In a type-writing machine, the combination of ribbon-spools, a shafton which said ribbon-spools are loosely mounted, means for engagingeither ribbon-spool to lock it to rotate with said shaft, sleeves whichsurround said shaft, a cam-slot in each sleeve, and means cooperatingwith said cam-slots and connected to the engaging means for effecting anoperation thereof.

36. In atype-writing machine, the combination of ribbon-spools, a shafton which said ribbon-spools are loosely mounted, a groove in said shaft,means for engaging either ribbon-spool to lock it to rotate with saidshaft, sleeves which surround said shaft, a cam-slot in each sleeve, abar that moves in the groove in said shaft, projections on said bar thatcooperate with said cam-slots, and intermediate connections between saidbar and the engaging means.

37. Ina type-writing machine, the combination of ribbon-spools, a shafton which said ribbon-spools are loosely mounted, a groove in said shaft,means for engaging either ribbonspool to lool; it to rotate with saidshaft, sleeves which surround and are loosely mounted on said shaft, acam-slot in each sleeve, and automatically-actuated means for arrestingone of said sleeves when an end of the ribbon is approached.

38. In atype-writing machine, the combination of ribbon-spools, a shafton which said ribbon-spools are loosely mounted, a groove in said shaft,means for engaging either ribbonspool to lock it to rotate with saidshaft, sleeves which surround said shaft, and are loosely mountedthereon, a cam-slot in each sleeve,

and automatically-actuateddmeans for arrest-y 39. In a type-writingmachine, the combination of ribbon-spools, a shaft on which saidribbon-spools are loosely mounted, a groove in said shaft, means forengaging either ribbon-spool to lock it to rotate with said shaft,sleeves which surround and are loosely mounted on said shaft, a cam-slotin each sleeve, automatically-actuated n means for arresting of saidsleeves when an end of the ribbon is one approached, to automaticallyreverse the direction of the feed of the ribbon, and a fingerpiececonnected to said bar and by means of which it may be moved by hand atwill to reverse the direction of the feed of the ribbon.

40. In a type-w riting machine, the combination of ribbon-spools, ashaft on which said spools are loosely mounted, means for automaticallyturning said shaft during the actuation of the machine, hand-operatedmeans which aord a turning of said shaft at will, means for engagingeither ribbon-spool to lock it to rotate with said shaft, cams that areadapted to rotate with said shaft, intermediate connections between saidcams and the engaging means, means for automatically effecting arelative movement between the shaft and cams to automatically actuatethe engaging means, and hand-operated means for affording a relativemovement of said cams and shaft to reverse the direction of the feed ofthe ribbon at will.

4l. In atype-writing machine, the combination of ribbon-spools, a shafton which said spools are loosely mounted, means for auto- Inaticallyturning said shaft during the actuation of the machine, hand-operatedmeans which adord a turning of said shaft at will, means for engagingeither ribbon-spool to lock it to rotate with said shaft, cams that areadapted to rotate with said shaft, a sliding bar carried by said shaftand which constitutes a connection between said cams and the engagingmeans, means for automatically effecting a sliding movement of said barto automatically actuate the engaging means, and hand-operated means foraffording a sliding movement of said bar to reverse the direction of thefeed of the ribbon at will.

4:2. Inatype-writingmachine, the combination of a shaft, means forautomatically and intermittently rotating said shaft, ribbonspoolsloosely mounted on said shaft, means for connecting either spool torotate with the shaft, cams that are adapted to rotate with said shaft,intermediate connections between said cams and said connecting means,handoperated means for aording a movement of the connecting means, andmeans for automatically arresting either of said cams when IOO IIO

- an end of the ribbon is approached, in order to effect a relativemovement of the shaft and arrested. cam and thus effect a movement ofthe connecting means to reverse the direction of the feed of the ribbon.

43. In a type-w ritin g machine, the combination of a power-drivencarriage, a shaft that is operatively connected to be driven by thepower that moves the carriage, ribbon-spools loosely mounted on saidshaft, means for connecting either spool to rotate with the shaft,reversing-cams that are adapted to rotate with said shaft, intermediateconnections between the cams and the connecting means, and meanscontrolled by the amount of ribbon on either spool for automaticallyeffecting an arrest of one of said cams when an end of the ribbon isapproached, whereby the movement of the shaft relative to the arrestedcam will afforda movement of the connecting means and a reversal in thedirection of the feed of the ribbon.

44. In a type-writing machine, the combination of a power-drivencarriage, a shaft that is operatively connected to be driven by thepower that moves the carriage, ribbon-spools looselymounted on saidshaft, means for connecting either spool to rotate with the shaft,reversing-cams that are adapted to rotate with said shaft, intermediateconnections between the cams and the connecting' means, means controlledby the amount of ribbon on either spool for automatically effecting anarrest of one of said cams when an end of the ribbon is approached,whereby the movement of the shaft relative to the arrested cam will aorda movement of the connecting means and a reversal in the direction ofthe feed of the ribbon, hand-operated means for moving said connecting'means at will, and hand-operated means for turning said shaft.

45. In a type-writing machine, the combination of a power-drivencarriage, escapement mechanism therefor, a shaft operatively connectedto said escapement mechanism, ribbon-spools loosely mounted on saidshaft, means carried by the shaft for connecting either ribbon spool torotate therewith, sleeves that are. loosely mounted on said shaft andare adapted to rotate therewith, cams on said sleeves, abutments orfingers 'carried by said sleeves, intermediate connections between thesleeves and said connecting' means, means adapted to automatically dropinto the path of the lingers on one of said cams when an end of theribbon is approached and to arrest the movement of the engaged cam withthe shaft, and means controlled by themovement of the shaft fordisengaging the larresting means after the reversal in the direction ofthe feed of the ribbon has been effected.

46. In a type-writing machine, the combination of a power-drivencarriage, a shaft adapted to be turned by the power which moves thecarriage, a groove in said shaft, ribbon-spools loosely mounted on saidshaft, means for connecting either ribbon-spool to rotate with theshaft, a bar contained within the groove in the shaft and controllingthe said connecting means, reversing-cams that are adapted to rotatewith the shaft and control the movement of the bar in said groove, andindependently and automatically operable arresting devices that arecontrolled by the amount of ribbon on either spool and which coperatewith the reversing-cams to arrest them and thereby effect an automaticmovement of the bar in the groove during the continued rotation of theshaft.

47. In a type-writing machine, the combination of a power-drivencarriage, a shaft adapted to be turned by the power which moves thecarriage and which has therein a groove, ribbon spools loosely mountedon said shaft, means for connecting either ribbon-spool to rotate withthe shaft, a bar contained within the groove in the shaft andcontrolling the said connecting means, reversing-cams that are adaptedto rotate with the shaft and control the movement of the bar in saidgroove, independently and automatically operable arresting devices thatare controlled by the amount of ribbonv on either spool and whichcooperate with the reversing-cams to arrest them and thereby effect anautomatic movement of the bar in the groove during the continuedrotation of the shaft, and releasingcams which are fixed to rotate withthe shaft and automatically disengage an arresting device after theshift of the bar in its groove has been effected.

48. In a type-writing machine, the combination of a power-drivencarriage, a shaft adapted to be turned by the power which moves thecarriage, a groove in said shaft, ribbon-spools loosely mounted on said'shaft, a pawl for connecting' either ribbon-spool to rotate with theshaft, a bar containedwithin the groove in the shaft. and controllingthe said pawl, reversing-cams that are adapted to rotate with the shaftand control the movement of the bar in said groove, independentarresting-arms, each having independently-operable means connectedthereto that is adapted to bear on the outer surface of the ribbon on aspool to automatically control the position of the associatedarresting-arm, said arresting-arms cooperating with the reversing-camsto arrest them and thereby effect an automatic movement of the bar inthe groove during the continued rotation of the shaft, releasing-camswhich are fixed to rotate with the shaft and automatically disengage anarresting arm after the shift of the bar in its groove has beeneffected, and hand-operated means for turning said shaft.

49. In atype-writing machine, the combination of ribbon-spools,reversing devices therefor, and cams that are adapted to assumedifferent positions relative to said reversing de- IOO IIO

vices and which in one position of each cam relative to its associatedreversing device will prevent the reversing actuation of the latter andin another position relative to its associated cam will afford areversing operation.

50. In atype-writinginachine, the combination of ribbon-spools,reversing devices therefor, and cams Which are adapted to rotate withsaid reversing devices or independently thereof.

51. In atype-writing machine, the combination of ribbon-spools,reversing devices therefor, means controlled by said reversing devicesfor affording a change in the direction of the feed of the ribbon, camswhich are adapted to move with said reversing devices or to moveindependently thereof, and means for automatically effecting a relativemovement between said cams and reversing devices.

52. In atype-writing machine, the combination of ribbon-s pools,reversing devices therefor, means controlled by said reversing' devicesfor affording a change in the direction of the feed of the ribbon, camswhich are adapted to rotate with said reversing devices or to rotateindependently thereof, and means for automatically arresting thereversing devices to effect a relative movement between said cams andreversing devices to automatically change the direction of the feed ofthe ribbon and set the parts for the next reversing operation.

53. In a type-writing machine, the combination of reversing devices foreffecting a change in the direction of the feed of the ribbon and whichare adapted to receive a. movement relatively to each other, and meanscooperating therewith to automatically set the parts for the nextreversing operation when they are actuated to effect a reversal in thedirection of the feed of the ribbon.

54. Inatype-writing machine, the combination of ribbon-spools, reversingdevices therefor, abutments carried by said reversing devices,automatically-actuated arresting devices cooperating with said abutmentsto prevent a movement of a reversing device, and means for automaticallycontrolling the engagement and disengagement between the arrestingdevices and said abutments.

55. In atype-writing machine, the combination of ribbon-spools,reversing devices therefor, abutments carried by said reversingdevices,automatically-actuated arresting devices cooperating with saidabutments to prevent a movement of a reversing device, and cams whichare adapted to rotate with or independently of said reversing devicesfor automatically controlling the engagement and disengagement betweenthe arresting devices and said abutments.'l

56. Inatype-writing machine, the combination of ribbon-spools, reversingdevices therefor, abutments carried by said reversing devices, means formaintaining the abutments on the different reversing devices at an angleone to another, and automatically-actuated means for arresting saidabutments.

57. In atype-Writing machine, the combination of ribbon-spools,reversing devices therefor, abutments carried by said reversing devices,means for maintaining the abutments on the different reversing devicesat an angle one to another, autoniatically-actuated means for arrestingsaid abutments, and means for automatically controlling the engagementand disengagement between the arresting means and said abutments.

58. In atype-writing machine, the combination of ribbon-spools,reversing devices therefor and which are adapted tot rotate as theribbon-spools turn, abutments carried by said reversing devices, meansfor automatically shifting said reversing devices so that the abutmentson the different reversing devices will project at an angle one toanother, and automatically-actuated arresting means cooperating withsaid abutments.

59. In a type-writing machine, the combination of ribbon-spools,reversing devices therefor and which are adapted to rotate as theribbon-spools turn, abutments carried by said reversing devices, meansfor automatically shifting said reversing devices so that the abutmentson the different reversing devices will project at an angle one toanother, automatically-actuated arresting means coperating with saidabutments, and cams which are diierently disposed and one of whichcooperates with the abutments of each reversing device, one of said camsaffording 'an engagement between abutments of its associated reversingdevice and the arresting means when the other cam prevents such anengagement between the abutments of its associated reversing device andthe arresting means.

60. In atype-writing machine, the combination of ribbon-spools,reversing devices therefor, abutments on said reversing devices,elliptical cams, and means for positioning the abutments on onereversing device at an angle to the length of the associated cam whenthe abutments on the other reversing device are substantially coincidentwith the length of the associated cam, and arresting means whichcooperate with said abutments.

6l. In aty pe-writing machine, the combination of ribbon-spools, ashafttherefor, means for connecting either ribbon-spool to said shaft,reversing devices operatively connected to said connecting means,abutments on said reversing devices, elliptical cams, means forpositioning the abutments of one reversing device at an angle to thelength of the associated cam when the abutments on the other reversingdevice are substantially coincident with the length of the associatedcam, and automatically-actuated arresting means which cooperate withsaid abutments.

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62. In a t ype-writing machine, the combination of ribbon-spools, ashaft therefor, means for connecting either ribbon spool to said shaft,reversing-devices operatively Connected to said connecting means, a barthat moves longitudinally of said shaft and is connected to saidreversing devices, abutments on said reversing devices, elliptical cams,means con- .trolled by said bar for affording a positioning of theabutments on one reversing device at an angle to the length of theassociated cam when the abutments on the other reversing device arcsubstantially coincident with the length of the associated cam, andautomatically-actuated arresting means which coperate with saidabutments.

63. In atype-writing machine, the combination of ribbon-spools, a shaft,reversing devices, means for arresting said reversing devices andcontrolling-cams, said ribbon-spools, reversing devices andcontrolling-cams being carried by and adapted to rotate with said shaft.

64. In atype-writing machine, the combination of ashaft, ribbon-spools,reversing-cams, engaging means controlled by said cams and adapted toconnect either spool to rotate with the shaft, arresting devices, onefor each reversing-cam, and controlling-cams, said ribbon-spools,reversing-cams, engaging means and controlling-cams being mounted on andadapted to rotate with said shaft.

65. In a type-writing machine, the combination of a ribbon-vibrator,means for automatically moving said ribbon-vibrator to and from theprinting-point, and means for affording a further independent movementof said ribbon-vibrator away from the platen.

66. In atype-writing machine, the combination of a pivotedribbon-vibrator, means for automatically moving said ribbon-vibrator toand from the printing-point, and means for affording a furtherindependent movement of said ribbon-vibrator on its pivot.

67. In a type-writing machine, the combination of a ribbon-vibrator,means for automatically moving said ribbon-vibrator to and from theprinting-point, and spring-pressed means for affording a furtherindependent movement of said ribbon-vibrator away from the platen inorder to give better access to the printingline.

68. In a type-writing machine, the combination of a ribbon-vibrator, arock-shaft on which said vibrator is carried, means for rocking saidrock-shaft, and spring-pressed means for normall y maintaining a fixedrelation between the vibrator and rock-shaft and for permitting whendesired au independent movement of the vibrator against the tension ofits springpressed means.

69. In a type-writing machine, the combination of a vibratory device, aribbon-vibrator carried by said vibratory device and adapted to moveindependently thereof, and means for normally maintaining a fixedrelation between said ribbon-vibrator and its vibratory device.

70. In a type-writing machine, the combination of a rock-shaft, aribbon-vibrator carried by said shaft and movable independently thereof,means for rocking said shaft to move the vibrator to and away from theprinting-point, a stop device on the rock-shaft, a cooperating stopdevice on the vibrator, and a spring which tends to maintain a fixedrelation between said vibrator and shaft but permits an independentmovement of the vibrator relative to the shaft.

71. In a type-writing machine, the combination with escapementmechanism, of a rockshaft therefor, and a ribbon-vibrator connected tosaid roch-shaft so as to move with the rock-shaft or independentlythereof.

7 2. In a type-writing' machine, the combination with escapementmechanism, a rock-shaft to which one member of the escapement mechanismis directly connected, a ribbon-vibrator directly connected to andcarried by said rockshaft, and means for rocking said shaft.

7 3. In a type-writing machine, the combination of a roclC-shaft,feed-dogs directly connected to said rock-shaft, escapement deviceswhich coperate with said feed-dogs, a ribbonvibrator carried directly bysaid rock-shaft and adapted to be moved thereby toward and away 'fromthe printing-point, and means for rocking said shaft.

7 4. In a type-writing machine, the combination of reversing means foreffecting a change in the direction of the feed of the ribbon, and meanscooperating therewith to automatically arrest a portion of saidreversing means and thereby cause a reversal in the feed of the ribbonand to automatically set the parts for the next reversing operation.

7 5. Inatype-writing machine, the combination of ribbon-spools,reversing means therefor, abutments carried by said reversing means andmaintained at angles to one another, and automatically actuated meansfor arresting said abutments.

7 6. In a ty pe-writing machine, the combination of a platen, aribbon-vibrator, means for automatically moving said vibrator to andfrom the printing-point, and means independent of the automaticallyactuated moving means for affording a movement of the Vibrator away fromthe platen in order to give better access to the printing-line.

77. In a type-writing machine, the combination of ribbon-spools, meansfor connecting either ribbon-spool with its driving means, a cam whichnormally is adapted to rotate in unison with said ribbon-spools andcontrols said connecting means, and means for automatically arrestingsaid cam when an end of the ribbon is reached.

7 8. Inatype-writing machine, the combination of ribbon-spools, acontrolling device which normally rotates as the ribbon-spools arerotated, and means which automatically IOO IIO

ISO

afford a stopping of said device when an end of the ribbon is reached,to effect a reversal in the direction of the feed of the ribbon.

79. In atype-Writing machine, the combination of ribbon-spools, areversing device which is-adapted to receive a continuous rotation inunison with the ribbon-spools or to remain iixed against movement duringthe rotation of the spools, and means for automatically effecting anarrest of said reversing device.

80. In a type-Writing machine, the combination of ribbon-spools, areversing device which is adapted to rotate in unison with theribbonspools or to remain fixed against movement during the rotation ofthe spools, and means controlled by the ribbon for arresting Saidreversing device when an end of the ribbon is reached and thereby effecta reversal in the direction of the feed of the ribbon.

81. In a type-writing machine, the combination of ribbon-spools, areversing device which is adapted normally to rotate With theribbonspools, means controlled by said reversing device when it isbrought to rest during the feed of the ribbon for effecting a connectionbetween one ribbon spool and its driving means and for simultaneouslyeiecting a disconnection between the other spool and its driving means,and means for effecting an arrest of the reversing device when an end ofthe ribbon is reached.

Signed at Syracuse, in the county of Onondaga and State of New York,this 14th day of October, A. D. 1902.

ALEXANDER T. BROWN.

D. LAvINE, S. DAvIs.

